Breathing device utilizing a catalytic oxygen generation method



FIG. 1 is a perspective view of a breathing device utilizing a catalytic oxygen generation method taken from the front, top and left;

FIG. 2 is a perspective view thereof taken from the rear, top and right;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a left side elevation view thereof; and,

FIG. 8 is a right side elevation view thereof.

The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a breathing device utilizing a catalytic oxygen generation method, as shown and described. 